• Ideal for auditoriums and lecture halls • Motor is installed on special vibration insulators inside a 6" diameter steel roller • Case is made of aluminum and fire-retardant hardboard • Can be suspended almost anywhere • Surface has unobtrusive horizontal seams • Depending on surface, available in sizes through 21 x 28', or 24 x 24' and 35' NTSC • With control options, it can be operated from any remote location • NTSC format screens have black borders on all four sides • Optionally available in HDTV and WideScreen format